Truman’s extensive use of train travel during his time in the White House makes the dedication a fitting tribute, Ms. McCaskill said. The 33rd president was well known for crossing the country by train during his famous whistle-stop campaign tour in 1948. Truman’s presidential rail car, U.S. Car No. 1, was also housed at Union Station.

“It would be a fitting tribute to have the train station, just a short walk from the Capitol and that played such an important role in his presidency, bear the name of this great leader,” Ms. McCaskill said in a statement.

The transportation hub is owned by the federal government and could be renamed by Congress. Both Ms. McCaskill and Mr. Blunt serve on the committee with jurisdiction over the legislation.